cs4281.c revision 1.52
1/* $NetBSD: cs4281.c,v 1.52 2016/07/07 06:55:41 msaitoh Exp $ */ 2 3/* 4 * Copyright (c) 2000 Tatoku Ogaito. All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 3. All advertising materials mentioning features or use of this software 15 * must display the following acknowledgement: 16 * This product includes software developed by Tatoku Ogaito 17 * for the NetBSD Project. 18 * 4. The name of the author may not be used to endorse or promote products 19 * derived from this software without specific prior written permission 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 22 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 23 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 24 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 25 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 26 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 27 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 28 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 29 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 30 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 31 */ 32 33/* 34 * Cirrus Logic CS4281 driver. 35 * Data sheets can be found 36 * http://www.cirrus.com/ftp/pub/4281.pdf 37 * ftp://ftp.alsa-project.org/pub/manuals/cirrus/cs4281tm.pdf 38 * 39 * TODO: 40 * 1: midi and FM support 41 * 2: ... 42 * 43 */ 44 45#include <sys/cdefs.h> 46__KERNEL_RCSID(0, "$NetBSD: cs4281.c,v 1.52 2016/07/07 06:55:41 msaitoh Exp $"); 47 48#include <sys/param.h> 49#include <sys/systm.h> 50#include <sys/kernel.h> 51#include <sys/malloc.h> 52#include <sys/fcntl.h> 53#include <sys/device.h> 54#include <sys/systm.h> 55 56#include <dev/pci/pcidevs.h> 57#include <dev/pci/pcivar.h> 58#include <dev/pci/cs4281reg.h> 59#include <dev/pci/cs428xreg.h> 60 61#include <sys/audioio.h> 62#include <dev/audio_if.h> 63#include <dev/midi_if.h> 64#include <dev/mulaw.h> 65#include <dev/auconv.h> 66 67#include <dev/ic/ac97reg.h> 68#include <dev/ic/ac97var.h> 69 70#include <dev/pci/cs428x.h> 71 72#include <sys/bus.h> 73 74#if defined(ENABLE_SECONDARY_CODEC) 75#define MAX_CHANNELS (4) 76#define MAX_FIFO_SIZE 32 /* 128/4channels */ 77#else 78#define MAX_CHANNELS (2) 79#define MAX_FIFO_SIZE 64 /* 128/2channels */ 80#endif 81 82/* IF functions for audio driver */ 83static int cs4281_match(device_t, cfdata_t, void *); 84static void cs4281_attach(device_t, device_t, void *); 85static int cs4281_intr(void *); 86static int cs4281_query_encoding(void *, struct audio_encoding *); 87static int cs4281_set_params(void *, int, int, audio_params_t *, 88 audio_params_t *, stream_filter_list_t *, 89 stream_filter_list_t *); 90static int cs4281_halt_output(void *); 91static int cs4281_halt_input(void *); 92static int cs4281_getdev(void *, struct audio_device *); 93static int cs4281_trigger_output(void *, void *, void *, int, 94 void (*)(void *), void *, 95 const audio_params_t *); 96static int cs4281_trigger_input(void *, void *, void *, int, 97 void (*)(void *), void *, 98 const audio_params_t *); 99 100static int cs4281_reset_codec(void *); 101 102/* Internal functions */ 103static uint8_t cs4281_sr2regval(int); 104static void cs4281_set_dac_rate(struct cs428x_softc *, int); 105static void cs4281_set_adc_rate(struct cs428x_softc *, int); 106static int cs4281_init(struct cs428x_softc *, int); 107 108/* Power Management */ 109static bool cs4281_suspend(device_t, const pmf_qual_t *); 110static bool cs4281_resume(device_t, const pmf_qual_t *); 111 112static const struct audio_hw_if cs4281_hw_if = { 113 NULL, /* open */ 114 NULL, /* close */ 115 NULL, 116 cs4281_query_encoding, 117 cs4281_set_params, 118 cs428x_round_blocksize, 119 NULL, 120 NULL, 121 NULL, 122 NULL, 123 NULL, 124 cs4281_halt_output, 125 cs4281_halt_input, 126 NULL, 127 cs4281_getdev, 128 NULL, 129 cs428x_mixer_set_port, 130 cs428x_mixer_get_port, 131 cs428x_query_devinfo, 132 cs428x_malloc, 133 cs428x_free, 134 cs428x_round_buffersize, 135 cs428x_mappage, 136 cs428x_get_props, 137 cs4281_trigger_output, 138 cs4281_trigger_input, 139 NULL, 140 cs428x_get_locks, 141}; 142 143#if NMIDI > 0 && 0 144/* Midi Interface */ 145static void cs4281_midi_close(void*); 146static void cs4281_midi_getinfo(void *, struct midi_info *); 147static int cs4281_midi_open(void *, int, void (*)(void *, int), 148 void (*)(void *), void *); 149static int cs4281_midi_output(void *, int); 150 151static const struct midi_hw_if cs4281_midi_hw_if = { 152 cs4281_midi_open, 153 cs4281_midi_close, 154 cs4281_midi_output, 155 cs4281_midi_getinfo, 156 0, 157 cs428x_get_locks, 158}; 159#endif 160 161CFATTACH_DECL_NEW(clct, sizeof(struct cs428x_softc), 162 cs4281_match, cs4281_attach, NULL, NULL); 163 164static struct audio_device cs4281_device = { 165 "CS4281", 166 "", 167 "cs4281" 168}; 169 170 171static int 172cs4281_match(device_t parent, cfdata_t match, void *aux) 173{ 174 struct pci_attach_args *pa; 175 176 pa = (struct pci_attach_args *)aux; 177 if (PCI_VENDOR(pa->pa_id) != PCI_VENDOR_CIRRUS) 178 return 0; 179 if (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_CIRRUS_CS4281) 180 return 1; 181 return 0; 182} 183 184static void 185cs4281_attach(device_t parent, device_t self, void *aux) 186{ 187 struct cs428x_softc *sc; 188 struct pci_attach_args *pa; 189 pci_chipset_tag_t pc; 190 char const *intrstr; 191 pcireg_t reg; 192 int error; 193 char intrbuf[PCI_INTRSTR_LEN]; 194 195 sc = device_private(self); 196 sc->sc_dev = self; 197 pa = (struct pci_attach_args *)aux; 198 pc = pa->pa_pc; 199 200 pci_aprint_devinfo(pa, "Audio controller"); 201 202 sc->sc_pc = pa->pa_pc; 203 sc->sc_pt = pa->pa_tag; 204 205 /* Map I/O register */ 206 if (pci_mapreg_map(pa, PCI_BA0, 207 PCI_MAPREG_TYPE_MEM|PCI_MAPREG_MEM_TYPE_32BIT, 0, 208 &sc->ba0t, &sc->ba0h, NULL, NULL)) { 209 aprint_error_dev(sc->sc_dev, "can't map BA0 space\n"); 210 return; 211 } 212 if (pci_mapreg_map(pa, PCI_BA1, 213 PCI_MAPREG_TYPE_MEM|PCI_MAPREG_MEM_TYPE_32BIT, 0, 214 &sc->ba1t, &sc->ba1h, NULL, NULL)) { 215 aprint_error_dev(sc->sc_dev, "can't map BA1 space\n"); 216 return; 217 } 218 219 sc->sc_dmatag = pa->pa_dmat; 220 221 /* power up chip */ 222 if ((error = pci_activate(pa->pa_pc, pa->pa_tag, self, 223 pci_activate_null)) && error != EOPNOTSUPP) { 224 aprint_error_dev(sc->sc_dev, "cannot activate %d\n", error); 225 return; 226 } 227 228 /* Enable the device (set bus master flag) */ 229 reg = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG); 230 pci_conf_write(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG, 231 reg | PCI_COMMAND_MASTER_ENABLE); 232 233#if 0 234 /* LATENCY_TIMER setting */ 235 temp1 = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_BHLC_REG); 236 if (PCI_LATTIMER(temp1) < 32) { 237 temp1 &= 0xffff00ff; 238 temp1 |= 0x00002000; 239 pci_conf_write(pa->pa_pc, pa->pa_tag, PCI_BHLC_REG, temp1); 240 } 241#endif 242 243 /* Map and establish the interrupt. */ 244 if (pci_intr_map(pa, &sc->intrh)) { 245 aprint_error_dev(sc->sc_dev, "couldn't map interrupt\n"); 246 return; 247 } 248 intrstr = pci_intr_string(pc, sc->intrh, intrbuf, sizeof(intrbuf)); 249 250 mutex_init(&sc->sc_lock, MUTEX_DEFAULT, IPL_NONE); 251 mutex_init(&sc->sc_intr_lock, MUTEX_DEFAULT, IPL_AUDIO); 252 253 sc->sc_ih = pci_intr_establish(sc->sc_pc, sc->intrh, IPL_AUDIO, 254 cs4281_intr, sc); 255 if (sc->sc_ih == NULL) { 256 aprint_error_dev(sc->sc_dev, "couldn't establish interrupt"); 257 if (intrstr != NULL) 258 aprint_error(" at %s", intrstr); 259 aprint_error("\n"); 260 mutex_destroy(&sc->sc_lock); 261 mutex_destroy(&sc->sc_intr_lock); 262 return; 263 } 264 aprint_normal_dev(sc->sc_dev, "interrupting at %s\n", intrstr); 265 266 /* 267 * Sound System start-up 268 */ 269 if (cs4281_init(sc, 1) != 0) { 270 mutex_destroy(&sc->sc_lock); 271 mutex_destroy(&sc->sc_intr_lock); 272 return; 273 } 274 275 sc->type = TYPE_CS4281; 276 sc->halt_input = cs4281_halt_input; 277 sc->halt_output = cs4281_halt_output; 278 279 sc->dma_size = CS4281_BUFFER_SIZE / MAX_CHANNELS; 280 sc->dma_align = 0x10; 281 sc->hw_blocksize = sc->dma_size / 2; 282 283 /* AC 97 attachment */ 284 sc->host_if.arg = sc; 285 sc->host_if.attach = cs428x_attach_codec; 286 sc->host_if.read = cs428x_read_codec; 287 sc->host_if.write = cs428x_write_codec; 288 sc->host_if.reset = cs4281_reset_codec; 289 if (ac97_attach(&sc->host_if, self, &sc->sc_lock) != 0) { 290 aprint_error_dev(sc->sc_dev, "ac97_attach failed\n"); 291 mutex_destroy(&sc->sc_lock); 292 mutex_destroy(&sc->sc_intr_lock); 293 return; 294 } 295 audio_attach_mi(&cs4281_hw_if, sc, sc->sc_dev); 296 297#if NMIDI > 0 && 0 298 midi_attach_mi(&cs4281_midi_hw_if, sc, sc->sc_dev); 299#endif 300 301 if (!pmf_device_register(self, cs4281_suspend, cs4281_resume)) 302 aprint_error_dev(self, "couldn't establish power handler\n"); 303} 304 305static int 306cs4281_intr(void *p) 307{ 308 struct cs428x_softc *sc; 309 uint32_t intr, hdsr0, hdsr1; 310 char *empty_dma; 311 int handled; 312 313 sc = p; 314 handled = 0; 315 hdsr0 = 0; 316 hdsr1 = 0; 317 318 mutex_spin_enter(&sc->sc_intr_lock); 319 320 /* grab interrupt register */ 321 intr = BA0READ4(sc, CS4281_HISR); 322 323 DPRINTF(("cs4281_intr:")); 324 /* not for me */ 325 if ((intr & HISR_INTENA) == 0) { 326 /* clear the interrupt register */ 327 BA0WRITE4(sc, CS4281_HICR, HICR_CHGM | HICR_IEV); 328 mutex_spin_exit(&sc->sc_intr_lock); 329 return 0; 330 } 331 332 if (intr & HISR_DMA0) 333 hdsr0 = BA0READ4(sc, CS4281_HDSR0); /* clear intr condition */ 334 if (intr & HISR_DMA1) 335 hdsr1 = BA0READ4(sc, CS4281_HDSR1); /* clear intr condition */ 336 /* clear the interrupt register */ 337 BA0WRITE4(sc, CS4281_HICR, HICR_CHGM | HICR_IEV); 338 339#ifdef CS4280_DEBUG 340 DPRINTF(("intr = 0x%08x, hdsr0 = 0x%08x hdsr1 = 0x%08x\n", 341 intr, hdsr0, hdsr1)); 342#else 343 __USE(hdsr0); 344 __USE(hdsr1); 345#endif 346 347 /* Playback Interrupt */ 348 if (intr & HISR_DMA0) { 349 handled = 1; 350 if (sc->sc_prun) { 351 DPRINTF((" PB DMA 0x%x(%d)", 352 (int)BA0READ4(sc, CS4281_DCA0), 353 (int)BA0READ4(sc, CS4281_DCC0))); 354 if ((sc->sc_pi%sc->sc_pcount) == 0) 355 sc->sc_pintr(sc->sc_parg); 356 /* copy buffer */ 357 ++sc->sc_pi; 358 empty_dma = sc->sc_pdma->addr; 359 if (sc->sc_pi&1) 360 empty_dma += sc->hw_blocksize; 361 memcpy(empty_dma, sc->sc_pn, sc->hw_blocksize); 362 sc->sc_pn += sc->hw_blocksize; 363 if (sc->sc_pn >= sc->sc_pe) 364 sc->sc_pn = sc->sc_ps; 365 } else { 366 aprint_error_dev(sc->sc_dev, "unexpected play intr\n"); 367 } 368 } 369 if (intr & HISR_DMA1) { 370 handled = 1; 371 if (sc->sc_rrun) { 372 /* copy from DMA */ 373 DPRINTF((" CP DMA 0x%x(%d)", (int)BA0READ4(sc, CS4281_DCA1), 374 (int)BA0READ4(sc, CS4281_DCC1))); 375 ++sc->sc_ri; 376 empty_dma = sc->sc_rdma->addr; 377 if ((sc->sc_ri & 1) == 0) 378 empty_dma += sc->hw_blocksize; 379 memcpy(sc->sc_rn, empty_dma, sc->hw_blocksize); 380 sc->sc_rn += sc->hw_blocksize; 381 if (sc->sc_rn >= sc->sc_re) 382 sc->sc_rn = sc->sc_rs; 383 if ((sc->sc_ri % sc->sc_rcount) == 0) 384 sc->sc_rintr(sc->sc_rarg); 385 } else { 386 aprint_error_dev(sc->sc_dev, 387 "unexpected record intr\n"); 388 } 389 } 390 DPRINTF(("\n")); 391 392 mutex_spin_exit(&sc->sc_intr_lock); 393 394 return handled; 395} 396 397static int 398cs4281_query_encoding(void *addr, struct audio_encoding *fp) 399{ 400 401 switch (fp->index) { 402 case 0: 403 strcpy(fp->name, AudioEulinear); 404 fp->encoding = AUDIO_ENCODING_ULINEAR; 405 fp->precision = 8; 406 fp->flags = 0; 407 break; 408 case 1: 409 strcpy(fp->name, AudioEmulaw); 410 fp->encoding = AUDIO_ENCODING_ULAW; 411 fp->precision = 8; 412 fp->flags = AUDIO_ENCODINGFLAG_EMULATED; 413 break; 414 case 2: 415 strcpy(fp->name, AudioEalaw); 416 fp->encoding = AUDIO_ENCODING_ALAW; 417 fp->precision = 8; 418 fp->flags = AUDIO_ENCODINGFLAG_EMULATED; 419 break; 420 case 3: 421 strcpy(fp->name, AudioEslinear); 422 fp->encoding = AUDIO_ENCODING_SLINEAR; 423 fp->precision = 8; 424 fp->flags = 0; 425 break; 426 case 4: 427 strcpy(fp->name, AudioEslinear_le); 428 fp->encoding = AUDIO_ENCODING_SLINEAR_LE; 429 fp->precision = 16; 430 fp->flags = 0; 431 break; 432 case 5: 433 strcpy(fp->name, AudioEulinear_le); 434 fp->encoding = AUDIO_ENCODING_ULINEAR_LE; 435 fp->precision = 16; 436 fp->flags = 0; 437 break; 438 case 6: 439 strcpy(fp->name, AudioEslinear_be); 440 fp->encoding = AUDIO_ENCODING_SLINEAR_BE; 441 fp->precision = 16; 442 fp->flags = 0; 443 break; 444 case 7: 445 strcpy(fp->name, AudioEulinear_be); 446 fp->encoding = AUDIO_ENCODING_ULINEAR_BE; 447 fp->precision = 16; 448 fp->flags = 0; 449 break; 450 default: 451 return EINVAL; 452 } 453 return 0; 454} 455 456static int 457cs4281_set_params(void *addr, int setmode, int usemode, 458 audio_params_t *play, audio_params_t *rec, stream_filter_list_t *pfil, 459 stream_filter_list_t *rfil) 460{ 461 audio_params_t hw; 462 struct cs428x_softc *sc; 463 audio_params_t *p; 464 stream_filter_list_t *fil; 465 int mode; 466 467 sc = addr; 468 for (mode = AUMODE_RECORD; mode != -1; 469 mode = mode == AUMODE_RECORD ? AUMODE_PLAY : -1) { 470 if ((setmode & mode) == 0) 471 continue; 472 473 p = mode == AUMODE_PLAY ? play : rec; 474 475 if (p == play) { 476 DPRINTFN(5, 477 ("play: sample=%u precision=%u channels=%u\n", 478 p->sample_rate, p->precision, p->channels)); 479 if (p->sample_rate < 6023 || p->sample_rate > 48000 || 480 (p->precision != 8 && p->precision != 16) || 481 (p->channels != 1 && p->channels != 2)) { 482 return EINVAL; 483 } 484 } else { 485 DPRINTFN(5, 486 ("rec: sample=%u precision=%u channels=%u\n", 487 p->sample_rate, p->precision, p->channels)); 488 if (p->sample_rate < 6023 || p->sample_rate > 48000 || 489 (p->precision != 8 && p->precision != 16) || 490 (p->channels != 1 && p->channels != 2)) { 491 return EINVAL; 492 } 493 } 494 hw = *p; 495 fil = mode == AUMODE_PLAY ? pfil : rfil; 496 497 switch (p->encoding) { 498 case AUDIO_ENCODING_SLINEAR_BE: 499 break; 500 case AUDIO_ENCODING_SLINEAR_LE: 501 break; 502 case AUDIO_ENCODING_ULINEAR_BE: 503 break; 504 case AUDIO_ENCODING_ULINEAR_LE: 505 break; 506 case AUDIO_ENCODING_ULAW: 507 hw.encoding = AUDIO_ENCODING_SLINEAR_LE; 508 fil->append(fil, mode == AUMODE_PLAY ? mulaw_to_linear8 509 : linear8_to_mulaw, &hw); 510 break; 511 case AUDIO_ENCODING_ALAW: 512 hw.encoding = AUDIO_ENCODING_SLINEAR_LE; 513 fil->append(fil, mode == AUMODE_PLAY ? alaw_to_linear8 514 : linear8_to_alaw, &hw); 515 break; 516 default: 517 return EINVAL; 518 } 519 } 520 521 /* set sample rate */ 522 cs4281_set_dac_rate(sc, play->sample_rate); 523 cs4281_set_adc_rate(sc, rec->sample_rate); 524 return 0; 525} 526 527static int 528cs4281_halt_output(void *addr) 529{ 530 struct cs428x_softc *sc; 531 532 sc = addr; 533 BA0WRITE4(sc, CS4281_DCR0, BA0READ4(sc, CS4281_DCR0) | DCRn_MSK); 534 sc->sc_prun = 0; 535 return 0; 536} 537 538static int 539cs4281_halt_input(void *addr) 540{ 541 struct cs428x_softc *sc; 542 543 sc = addr; 544 BA0WRITE4(sc, CS4281_DCR1, BA0READ4(sc, CS4281_DCR1) | DCRn_MSK); 545 sc->sc_rrun = 0; 546 return 0; 547} 548 549static int 550cs4281_getdev(void *addr, struct audio_device *retp) 551{ 552 553 *retp = cs4281_device; 554 return 0; 555} 556 557static int 558cs4281_trigger_output(void *addr, void *start, void *end, int blksize, 559 void (*intr)(void *), void *arg, 560 const audio_params_t *param) 561{ 562 struct cs428x_softc *sc; 563 uint32_t fmt; 564 struct cs428x_dma *p; 565 int dma_count; 566 567 sc = addr; 568 fmt = 0; 569#ifdef DIAGNOSTIC 570 if (sc->sc_prun) 571 printf("cs4281_trigger_output: already running\n"); 572#endif 573 sc->sc_prun = 1; 574 575 DPRINTF(("cs4281_trigger_output: sc=%p start=%p end=%p " 576 "blksize=%d intr=%p(%p)\n", addr, start, end, blksize, intr, arg)); 577 sc->sc_pintr = intr; 578 sc->sc_parg = arg; 579 580 /* stop playback DMA */ 581 BA0WRITE4(sc, CS4281_DCR0, BA0READ4(sc, CS4281_DCR0) | DCRn_MSK); 582 583 DPRINTF(("param: precision=%d channels=%d encoding=%d\n", 584 param->precision, param->channels, param->encoding)); 585 for (p = sc->sc_dmas; p != NULL && BUFADDR(p) != start; p = p->next) 586 continue; 587 if (p == NULL) { 588 printf("cs4281_trigger_output: bad addr %p\n", start); 589 return EINVAL; 590 } 591 592 sc->sc_pcount = blksize / sc->hw_blocksize; 593 sc->sc_ps = (char *)start; 594 sc->sc_pe = (char *)end; 595 sc->sc_pdma = p; 596 sc->sc_pbuf = KERNADDR(p); 597 sc->sc_pi = 0; 598 sc->sc_pn = sc->sc_ps; 599 if (blksize >= sc->dma_size) { 600 sc->sc_pn = sc->sc_ps + sc->dma_size; 601 memcpy(sc->sc_pbuf, start, sc->dma_size); 602 ++sc->sc_pi; 603 } else { 604 sc->sc_pn = sc->sc_ps + sc->hw_blocksize; 605 memcpy(sc->sc_pbuf, start, sc->hw_blocksize); 606 } 607 608 dma_count = sc->dma_size; 609 if (param->precision != 8) 610 dma_count /= 2; /* 16 bit */ 611 if (param->channels > 1) 612 dma_count /= 2; /* Stereo */ 613 614 DPRINTF(("cs4281_trigger_output: DMAADDR(p)=0x%x count=%d\n", 615 (int)DMAADDR(p), dma_count)); 616 BA0WRITE4(sc, CS4281_DBA0, DMAADDR(p)); 617 BA0WRITE4(sc, CS4281_DBC0, dma_count-1); 618 619 /* set playback format */ 620 fmt = BA0READ4(sc, CS4281_DMR0) & ~DMRn_FMTMSK; 621 if (param->precision == 8) 622 fmt |= DMRn_SIZE8; 623 if (param->channels == 1) 624 fmt |= DMRn_MONO; 625 if (param->encoding == AUDIO_ENCODING_ULINEAR_BE || 626 param->encoding == AUDIO_ENCODING_SLINEAR_BE) 627 fmt |= DMRn_BEND; 628 if (param->encoding == AUDIO_ENCODING_ULINEAR_BE || 629 param->encoding == AUDIO_ENCODING_ULINEAR_LE) 630 fmt |= DMRn_USIGN; 631 BA0WRITE4(sc, CS4281_DMR0, fmt); 632 633 /* set sample rate */ 634 sc->sc_prate = param->sample_rate; 635 cs4281_set_dac_rate(sc, param->sample_rate); 636 637 /* start DMA */ 638 BA0WRITE4(sc, CS4281_DCR0, BA0READ4(sc, CS4281_DCR0) & ~DCRn_MSK); 639 /* Enable interrupts */ 640 BA0WRITE4(sc, CS4281_HICR, HICR_IEV | HICR_CHGM); 641 642 DPRINTF(("HICR =0x%08x(expected 0x00000001)\n", BA0READ4(sc, CS4281_HICR))); 643 DPRINTF(("HIMR =0x%08x(expected 0x00f0fc3f)\n", BA0READ4(sc, CS4281_HIMR))); 644 DPRINTF(("DMR0 =0x%08x(expected 0x2???0018)\n", BA0READ4(sc, CS4281_DMR0))); 645 DPRINTF(("DCR0 =0x%08x(expected 0x00030000)\n", BA0READ4(sc, CS4281_DCR0))); 646 DPRINTF(("FCR0 =0x%08x(expected 0x81000f00)\n", BA0READ4(sc, CS4281_FCR0))); 647 DPRINTF(("DACSR=0x%08x(expected 1 for 44kHz 5 for 8kHz)\n", 648 BA0READ4(sc, CS4281_DACSR))); 649 DPRINTF(("SRCSA=0x%08x(expected 0x0b0a0100)\n", BA0READ4(sc, CS4281_SRCSA))); 650 DPRINTF(("SSPM&SSPM_PSRCEN =0x%08x(expected 0x00000010)\n", 651 BA0READ4(sc, CS4281_SSPM) & SSPM_PSRCEN)); 652 653 return 0; 654} 655 656static int 657cs4281_trigger_input(void *addr, void *start, void *end, int blksize, 658 void (*intr)(void *), void *arg, 659 const audio_params_t *param) 660{ 661 struct cs428x_softc *sc; 662 struct cs428x_dma *p; 663 uint32_t fmt; 664 int dma_count; 665 666 sc = addr; 667 fmt = 0; 668#ifdef DIAGNOSTIC 669 if (sc->sc_rrun) 670 printf("cs4281_trigger_input: already running\n"); 671#endif 672 sc->sc_rrun = 1; 673 DPRINTF(("cs4281_trigger_input: sc=%p start=%p end=%p " 674 "blksize=%d intr=%p(%p)\n", addr, start, end, blksize, intr, arg)); 675 sc->sc_rintr = intr; 676 sc->sc_rarg = arg; 677 678 /* stop recording DMA */ 679 BA0WRITE4(sc, CS4281_DCR1, BA0READ4(sc, CS4281_DCR1) | DCRn_MSK); 680 681 for (p = sc->sc_dmas; p && BUFADDR(p) != start; p = p->next) 682 continue; 683 if (!p) { 684 printf("cs4281_trigger_input: bad addr %p\n", start); 685 return EINVAL; 686 } 687 688 sc->sc_rcount = blksize / sc->hw_blocksize; 689 sc->sc_rs = (char *)start; 690 sc->sc_re = (char *)end; 691 sc->sc_rdma = p; 692 sc->sc_rbuf = KERNADDR(p); 693 sc->sc_ri = 0; 694 sc->sc_rn = sc->sc_rs; 695 696 dma_count = sc->dma_size; 697 if (param->precision != 8) 698 dma_count /= 2; 699 if (param->channels > 1) 700 dma_count /= 2; 701 702 DPRINTF(("cs4281_trigger_input: DMAADDR(p)=0x%x count=%d\n", 703 (int)DMAADDR(p), dma_count)); 704 BA0WRITE4(sc, CS4281_DBA1, DMAADDR(p)); 705 BA0WRITE4(sc, CS4281_DBC1, dma_count-1); 706 707 /* set recording format */ 708 fmt = BA0READ4(sc, CS4281_DMR1) & ~DMRn_FMTMSK; 709 if (param->precision == 8) 710 fmt |= DMRn_SIZE8; 711 if (param->channels == 1) 712 fmt |= DMRn_MONO; 713 if (param->encoding == AUDIO_ENCODING_ULINEAR_BE || 714 param->encoding == AUDIO_ENCODING_SLINEAR_BE) 715 fmt |= DMRn_BEND; 716 if (param->encoding == AUDIO_ENCODING_ULINEAR_BE || 717 param->encoding == AUDIO_ENCODING_ULINEAR_LE) 718 fmt |= DMRn_USIGN; 719 BA0WRITE4(sc, CS4281_DMR1, fmt); 720 721 /* set sample rate */ 722 sc->sc_rrate = param->sample_rate; 723 cs4281_set_adc_rate(sc, param->sample_rate); 724 725 /* Start DMA */ 726 BA0WRITE4(sc, CS4281_DCR1, BA0READ4(sc, CS4281_DCR1) & ~DCRn_MSK); 727 /* Enable interrupts */ 728 BA0WRITE4(sc, CS4281_HICR, HICR_IEV | HICR_CHGM); 729 730 DPRINTF(("HICR=0x%08x\n", BA0READ4(sc, CS4281_HICR))); 731 DPRINTF(("HIMR=0x%08x\n", BA0READ4(sc, CS4281_HIMR))); 732 DPRINTF(("DMR1=0x%08x\n", BA0READ4(sc, CS4281_DMR1))); 733 DPRINTF(("DCR1=0x%08x\n", BA0READ4(sc, CS4281_DCR1))); 734 735 return 0; 736} 737 738static bool 739cs4281_suspend(device_t dv, const pmf_qual_t *qual) 740{ 741 struct cs428x_softc *sc = device_private(dv); 742 743 mutex_enter(&sc->sc_lock); 744 mutex_spin_exit(&sc->sc_intr_lock); 745 746 /* save current playback status */ 747 if (sc->sc_prun) { 748 sc->sc_suspend_state.cs4281.dcr0 = BA0READ4(sc, CS4281_DCR0); 749 sc->sc_suspend_state.cs4281.dmr0 = BA0READ4(sc, CS4281_DMR0); 750 sc->sc_suspend_state.cs4281.dbc0 = BA0READ4(sc, CS4281_DBC0); 751 sc->sc_suspend_state.cs4281.dba0 = BA0READ4(sc, CS4281_DBA0); 752 } 753 754 /* save current capture status */ 755 if (sc->sc_rrun) { 756 sc->sc_suspend_state.cs4281.dcr1 = BA0READ4(sc, CS4281_DCR1); 757 sc->sc_suspend_state.cs4281.dmr1 = BA0READ4(sc, CS4281_DMR1); 758 sc->sc_suspend_state.cs4281.dbc1 = BA0READ4(sc, CS4281_DBC1); 759 sc->sc_suspend_state.cs4281.dba1 = BA0READ4(sc, CS4281_DBA1); 760 } 761 /* Stop DMA */ 762 BA0WRITE4(sc, CS4281_DCR0, BA0READ4(sc, CS4281_DCR0) | DCRn_MSK); 763 BA0WRITE4(sc, CS4281_DCR1, BA0READ4(sc, CS4281_DCR1) | DCRn_MSK); 764 765 mutex_spin_exit(&sc->sc_intr_lock); 766 mutex_exit(&sc->sc_lock); 767 768 return true; 769} 770 771static bool 772cs4281_resume(device_t dv, const pmf_qual_t *qual) 773{ 774 struct cs428x_softc *sc = device_private(dv); 775 776 mutex_enter(&sc->sc_lock); 777 mutex_spin_enter(&sc->sc_intr_lock); 778 779 cs4281_init(sc, 0); 780 cs4281_reset_codec(sc); 781 782 /* restore ac97 registers */ 783 mutex_spin_exit(&sc->sc_intr_lock); 784 (*sc->codec_if->vtbl->restore_ports)(sc->codec_if); 785 mutex_spin_enter(&sc->sc_intr_lock); 786 787 /* restore DMA related status */ 788 if (sc->sc_prun) { 789 cs4281_set_dac_rate(sc, sc->sc_prate); 790 BA0WRITE4(sc, CS4281_DBA0, sc->sc_suspend_state.cs4281.dba0); 791 BA0WRITE4(sc, CS4281_DBC0, sc->sc_suspend_state.cs4281.dbc0); 792 BA0WRITE4(sc, CS4281_DMR0, sc->sc_suspend_state.cs4281.dmr0); 793 BA0WRITE4(sc, CS4281_DCR0, sc->sc_suspend_state.cs4281.dcr0); 794 } 795 if (sc->sc_rrun) { 796 cs4281_set_adc_rate(sc, sc->sc_rrate); 797 BA0WRITE4(sc, CS4281_DBA1, sc->sc_suspend_state.cs4281.dba1); 798 BA0WRITE4(sc, CS4281_DBC1, sc->sc_suspend_state.cs4281.dbc1); 799 BA0WRITE4(sc, CS4281_DMR1, sc->sc_suspend_state.cs4281.dmr1); 800 BA0WRITE4(sc, CS4281_DCR1, sc->sc_suspend_state.cs4281.dcr1); 801 } 802 /* enable intterupts */ 803 if (sc->sc_prun || sc->sc_rrun) 804 BA0WRITE4(sc, CS4281_HICR, HICR_IEV | HICR_CHGM); 805 806 mutex_spin_exit(&sc->sc_intr_lock); 807 mutex_exit(&sc->sc_lock); 808 809 return true; 810} 811 812/* control AC97 codec */ 813static int 814cs4281_reset_codec(void *addr) 815{ 816 struct cs428x_softc *sc; 817 uint16_t data; 818 uint32_t dat32; 819 int n; 820 821 sc = addr; 822 823 DPRINTFN(3, ("cs4281_reset_codec\n")); 824 825 /* Reset codec */ 826 BA0WRITE4(sc, CS428X_ACCTL, 0); 827 delay(50); /* delay 50us */ 828 829 BA0WRITE4(sc, CS4281_SPMC, 0); 830 delay(100); /* delay 100us */ 831 BA0WRITE4(sc, CS4281_SPMC, SPMC_RSTN); 832#if defined(ENABLE_SECONDARY_CODEC) 833 BA0WRITE4(sc, CS4281_SPMC, SPMC_RSTN | SPCM_ASDIN2E); 834 BA0WRITE4(sc, CS4281_SERMC, SERMC_TCID); 835#endif 836 delay(50000); /* XXX: delay 50ms */ 837 838 /* Enable ASYNC generation */ 839 BA0WRITE4(sc, CS428X_ACCTL, ACCTL_ESYN); 840 841 /* Wait for codec ready. Linux driver waits 50ms here */ 842 n = 0; 843 while ((BA0READ4(sc, CS428X_ACSTS) & ACSTS_CRDY) == 0) { 844 delay(100); 845 if (++n > 1000) { 846 printf("reset_codec: AC97 codec ready timeout\n"); 847 return ETIMEDOUT; 848 } 849 } 850#if defined(ENABLE_SECONDARY_CODEC) 851 /* secondary codec ready*/ 852 n = 0; 853 while ((BA0READ4(sc, CS4281_ACSTS2) & ACSTS2_CRDY2) == 0) { 854 delay(100); 855 if (++n > 1000) 856 return 0; 857 } 858#endif 859 /* Set the serial timing configuration */ 860 /* XXX: undocumented but the Linux driver do this */ 861 BA0WRITE4(sc, CS4281_SERMC, SERMC_PTCAC97); 862 863 /* Wait for codec ready signal */ 864 n = 0; 865 do { 866 delay(1000); 867 if (++n > 1000) { 868 aprint_error_dev(sc->sc_dev, 869 "timeout waiting for codec ready\n"); 870 return ETIMEDOUT; 871 } 872 dat32 = BA0READ4(sc, CS428X_ACSTS) & ACSTS_CRDY; 873 } while (dat32 == 0); 874 875 /* Enable Valid Frame output on ASDOUT */ 876 BA0WRITE4(sc, CS428X_ACCTL, ACCTL_ESYN | ACCTL_VFRM); 877 878 /* Wait until codec calibration is finished. Codec register 26h */ 879 n = 0; 880 do { 881 delay(1); 882 if (++n > 1000) { 883 aprint_error_dev(sc->sc_dev, 884 "timeout waiting for codec calibration\n"); 885 return ETIMEDOUT; 886 } 887 cs428x_read_codec(sc, AC97_REG_POWER, &data); 888 } while ((data & 0x0f) != 0x0f); 889 890 /* Set the serial timing configuration again */ 891 /* XXX: undocumented but the Linux driver do this */ 892 BA0WRITE4(sc, CS4281_SERMC, SERMC_PTCAC97); 893 894 /* Wait until we've sampled input slots 3 & 4 as valid */ 895 n = 0; 896 do { 897 delay(1000); 898 if (++n > 1000) { 899 aprint_error_dev(sc->sc_dev, "timeout waiting for " 900 "sampled input slots as valid\n"); 901 return ETIMEDOUT; 902 } 903 dat32 = BA0READ4(sc, CS428X_ACISV) & (ACISV_ISV3 | ACISV_ISV4) ; 904 } while (dat32 != (ACISV_ISV3 | ACISV_ISV4)); 905 906 /* Start digital data transfer of audio data to the codec */ 907 BA0WRITE4(sc, CS428X_ACOSV, (ACOSV_SLV3 | ACOSV_SLV4)); 908 return 0; 909} 910 911 912/* Internal functions */ 913 914/* convert sample rate to register value */ 915static uint8_t 916cs4281_sr2regval(int rate) 917{ 918 uint8_t retval; 919 920 /* We don't have to change here. but anyway ... */ 921 if (rate > 48000) 922 rate = 48000; 923 if (rate < 6023) 924 rate = 6023; 925 926 switch (rate) { 927 case 8000: 928 retval = 5; 929 break; 930 case 11025: 931 retval = 4; 932 break; 933 case 16000: 934 retval = 3; 935 break; 936 case 22050: 937 retval = 2; 938 break; 939 case 44100: 940 retval = 1; 941 break; 942 case 48000: 943 retval = 0; 944 break; 945 default: 946 retval = 1536000/rate; /* == 24576000/(rate*16) */ 947 } 948 return retval; 949} 950 951static void 952cs4281_set_adc_rate(struct cs428x_softc *sc, int rate) 953{ 954 955 BA0WRITE4(sc, CS4281_ADCSR, cs4281_sr2regval(rate)); 956} 957 958static void 959cs4281_set_dac_rate(struct cs428x_softc *sc, int rate) 960{ 961 962 BA0WRITE4(sc, CS4281_DACSR, cs4281_sr2regval(rate)); 963} 964 965static int 966cs4281_init(struct cs428x_softc *sc, int init) 967{ 968 int n; 969 uint16_t data; 970 uint32_t dat32; 971 972 /* set "Configuration Write Protect" register to 973 * 0x4281 to allow to write */ 974 BA0WRITE4(sc, CS4281_CWPR, 0x4281); 975 976 /* 977 * Unset "Full Power-Down bit of Extended PCI Power Management 978 * Control" register to release the reset state. 979 */ 980 dat32 = BA0READ4(sc, CS4281_EPPMC); 981 if (dat32 & EPPMC_FPDN) { 982 BA0WRITE4(sc, CS4281_EPPMC, dat32 & ~EPPMC_FPDN); 983 } 984 985 /* Start PLL out in known state */ 986 BA0WRITE4(sc, CS4281_CLKCR1, 0); 987 /* Start serial ports out in known state */ 988 BA0WRITE4(sc, CS4281_SERMC, 0); 989 990 /* Reset codec */ 991 BA0WRITE4(sc, CS428X_ACCTL, 0); 992 delay(50); /* delay 50us */ 993 994 BA0WRITE4(sc, CS4281_SPMC, 0); 995 delay(100); /* delay 100us */ 996 BA0WRITE4(sc, CS4281_SPMC, SPMC_RSTN); 997#if defined(ENABLE_SECONDARY_CODEC) 998 BA0WRITE4(sc, CS4281_SPMC, SPMC_RSTN | SPCM_ASDIN2E); 999 BA0WRITE4(sc, CS4281_SERMC, SERMC_TCID); 1000#endif 1001 delay(50000); /* XXX: delay 50ms */ 1002 1003 /* Turn on Sound System clocks based on ABITCLK */ 1004 BA0WRITE4(sc, CS4281_CLKCR1, CLKCR1_DLLP); 1005 delay(50000); /* XXX: delay 50ms */ 1006 BA0WRITE4(sc, CS4281_CLKCR1, CLKCR1_SWCE | CLKCR1_DLLP); 1007 1008 /* Set enables for sections that are needed in the SSPM registers */ 1009 BA0WRITE4(sc, CS4281_SSPM, 1010 SSPM_MIXEN | /* Mixer */ 1011 SSPM_CSRCEN | /* Capture SRC */ 1012 SSPM_PSRCEN | /* Playback SRC */ 1013 SSPM_JSEN | /* Joystick */ 1014 SSPM_ACLEN | /* AC LINK */ 1015 SSPM_FMEN /* FM */ 1016 ); 1017 1018 /* Wait for clock stabilization */ 1019 n = 0; 1020#if 1 1021 /* what document says */ 1022 while ((BA0READ4(sc, CS4281_CLKCR1)& (CLKCR1_DLLRDY | CLKCR1_CLKON)) 1023 != (CLKCR1_DLLRDY | CLKCR1_CLKON)) { 1024 delay(100); 1025 if (++n > 1000) { 1026 aprint_error_dev(sc->sc_dev, 1027 "timeout waiting for clock stabilization\n"); 1028 return -1; 1029 } 1030 } 1031#else 1032 /* Cirrus driver for Linux does */ 1033 while (!(BA0READ4(sc, CS4281_CLKCR1) & CLKCR1_DLLRDY)) { 1034 delay(1000); 1035 if (++n > 1000) { 1036 aprint_error_dev(sc->sc_dev, 1037 "timeout waiting for clock stabilization\n"); 1038 return -1; 1039 } 1040 } 1041#endif 1042 1043 /* Enable ASYNC generation */ 1044 BA0WRITE4(sc, CS428X_ACCTL, ACCTL_ESYN); 1045 1046 /* Wait for codec ready. Linux driver waits 50ms here */ 1047 n = 0; 1048 while ((BA0READ4(sc, CS428X_ACSTS) & ACSTS_CRDY) == 0) { 1049 delay(100); 1050 if (++n > 1000) { 1051 aprint_error_dev(sc->sc_dev, 1052 "timeout waiting for codec ready\n"); 1053 return -1; 1054 } 1055 } 1056 1057#if defined(ENABLE_SECONDARY_CODEC) 1058 /* secondary codec ready*/ 1059 n = 0; 1060 while ((BA0READ4(sc, CS4281_ACSTS2) & ACSTS2_CRDY2) == 0) { 1061 delay(100); 1062 if (++n > 1000) { 1063 aprint_error_dev(sc->sc_dev, 1064 "timeout waiting for secondary codec ready\n"); 1065 return -1; 1066 } 1067 } 1068#endif 1069 1070 /* Set the serial timing configuration */ 1071 /* XXX: undocumented but the Linux driver do this */ 1072 BA0WRITE4(sc, CS4281_SERMC, SERMC_PTCAC97); 1073 1074 /* Wait for codec ready signal */ 1075 n = 0; 1076 do { 1077 delay(1000); 1078 if (++n > 1000) { 1079 aprint_error_dev(sc->sc_dev, 1080 "timeout waiting for codec ready\n"); 1081 return -1; 1082 } 1083 dat32 = BA0READ4(sc, CS428X_ACSTS) & ACSTS_CRDY; 1084 } while (dat32 == 0); 1085 1086 /* Enable Valid Frame output on ASDOUT */ 1087 BA0WRITE4(sc, CS428X_ACCTL, ACCTL_ESYN | ACCTL_VFRM); 1088 1089 /* Wait until codec calibration is finished. codec register 26h */ 1090 n = 0; 1091 do { 1092 delay(1); 1093 if (++n > 1000) { 1094 aprint_error_dev(sc->sc_dev, 1095 "timeout waiting for codec calibration\n"); 1096 return -1; 1097 } 1098 cs428x_read_codec(sc, AC97_REG_POWER, &data); 1099 } while ((data & 0x0f) != 0x0f); 1100 1101 /* Set the serial timing configuration again */ 1102 /* XXX: undocumented but the Linux driver do this */ 1103 BA0WRITE4(sc, CS4281_SERMC, SERMC_PTCAC97); 1104 1105 /* Wait until we've sampled input slots 3 & 4 as valid */ 1106 n = 0; 1107 do { 1108 delay(1000); 1109 if (++n > 1000) { 1110 aprint_error_dev(sc->sc_dev, "timeout waiting for " 1111 "sampled input slots as valid\n"); 1112 return -1; 1113 } 1114 dat32 = BA0READ4(sc, CS428X_ACISV) & (ACISV_ISV3 | ACISV_ISV4); 1115 } while (dat32 != (ACISV_ISV3 | ACISV_ISV4)); 1116 1117 /* Start digital data transfer of audio data to the codec */ 1118 BA0WRITE4(sc, CS428X_ACOSV, (ACOSV_SLV3 | ACOSV_SLV4)); 1119 1120 cs428x_write_codec(sc, AC97_REG_HEADPHONE_VOLUME, 0); 1121 cs428x_write_codec(sc, AC97_REG_MASTER_VOLUME, 0); 1122 1123 /* Power on the DAC */ 1124 cs428x_read_codec(sc, AC97_REG_POWER, &data); 1125 cs428x_write_codec(sc, AC97_REG_POWER, data & 0xfdff); 1126 1127 /* Wait until we sample a DAC ready state. 1128 * Not documented, but Linux driver does. 1129 */ 1130 for (n = 0; n < 32; ++n) { 1131 delay(1000); 1132 cs428x_read_codec(sc, AC97_REG_POWER, &data); 1133 if (data & 0x02) 1134 break; 1135 } 1136 1137 /* Power on the ADC */ 1138 cs428x_read_codec(sc, AC97_REG_POWER, &data); 1139 cs428x_write_codec(sc, AC97_REG_POWER, data & 0xfeff); 1140 1141 /* Wait until we sample ADC ready state. 1142 * Not documented, but Linux driver does. 1143 */ 1144 for (n = 0; n < 32; ++n) { 1145 delay(1000); 1146 cs428x_read_codec(sc, AC97_REG_POWER, &data); 1147 if (data & 0x01) 1148 break; 1149 } 1150 1151#if 0 1152 /* Initialize AC-Link features */ 1153 /* variable sample-rate support */ 1154 mem = BA0READ4(sc, CS4281_SERMC); 1155 mem |= (SERMC_ODSEN1 | SERMC_ODSEN2); 1156 BA0WRITE4(sc, CS4281_SERMC, mem); 1157 /* XXX: more... */ 1158 1159 /* Initialize SSCR register features */ 1160 /* XXX: hardware volume setting */ 1161 BA0WRITE4(sc, CS4281_SSCR, ~SSCR_HVC); /* disable HW volume setting */ 1162#endif 1163 1164 /* disable Sound Blaster Pro emulation */ 1165 /* XXX: 1166 * Cannot set since the documents does not describe which bit is 1167 * correspond to SSCR_SB. Since the reset value of SSCR is 0, 1168 * we can ignore it.*/ 1169#if 0 1170 BA0WRITE4(sc, CS4281_SSCR, SSCR_SB); 1171#endif 1172 1173 /* map AC97 PCM playback to DMA Channel 0 */ 1174 /* Reset FEN bit to setup first */ 1175 BA0WRITE4(sc, CS4281_FCR0, (BA0READ4(sc, CS4281_FCR0) & ~FCRn_FEN)); 1176 /* 1177 *| RS[4:0]/| | 1178 *| LS[4:0] | AC97 | Slot Function 1179 *|---------+--------+-------------------- 1180 *| 0 | 3 | Left PCM Playback 1181 *| 1 | 4 | Right PCM Playback 1182 *| 2 | 5 | Phone Line 1 DAC 1183 *| 3 | 6 | Center PCM Playback 1184 *.... 1185 * quoted from Table 29(p109) 1186 */ 1187 dat32 = 0x01 << 24 | /* RS[4:0] = 1 see above */ 1188 0x00 << 16 | /* LS[4:0] = 0 see above */ 1189 0x0f << 8 | /* SZ[6:0] = 15 size of buffer */ 1190 0x00 << 0 ; /* OF[6:0] = 0 offset */ 1191 BA0WRITE4(sc, CS4281_FCR0, dat32); 1192 BA0WRITE4(sc, CS4281_FCR0, dat32 | FCRn_FEN); 1193 1194 /* map AC97 PCM record to DMA Channel 1 */ 1195 /* Reset FEN bit to setup first */ 1196 BA0WRITE4(sc, CS4281_FCR1, (BA0READ4(sc, CS4281_FCR1) & ~FCRn_FEN)); 1197 /* 1198 *| RS[4:0]/| 1199 *| LS[4:0] | AC97 | Slot Function 1200 *|---------+------+------------------- 1201 *| 10 | 3 | Left PCM Record 1202 *| 11 | 4 | Right PCM Record 1203 *| 12 | 5 | Phone Line 1 ADC 1204 *| 13 | 6 | Mic ADC 1205 *.... 1206 * quoted from Table 30(p109) 1207 */ 1208 dat32 = 0x0b << 24 | /* RS[4:0] = 11 See above */ 1209 0x0a << 16 | /* LS[4:0] = 10 See above */ 1210 0x0f << 8 | /* SZ[6:0] = 15 Size of buffer */ 1211 0x10 << 0 ; /* OF[6:0] = 16 offset */ 1212 1213 /* XXX: I cannot understand why FCRn_PSH is needed here. */ 1214 BA0WRITE4(sc, CS4281_FCR1, dat32 | FCRn_PSH); 1215 BA0WRITE4(sc, CS4281_FCR1, dat32 | FCRn_FEN); 1216 1217#if 0 1218 /* Disable DMA Channel 2, 3 */ 1219 BA0WRITE4(sc, CS4281_FCR2, (BA0READ4(sc, CS4281_FCR2) & ~FCRn_FEN)); 1220 BA0WRITE4(sc, CS4281_FCR3, (BA0READ4(sc, CS4281_FCR3) & ~FCRn_FEN)); 1221#endif 1222 1223 /* Set the SRC Slot Assignment accordingly */ 1224 /*| PLSS[4:0]/ 1225 *| PRSS[4:0] | AC97 | Slot Function 1226 *|-----------+------+---------------- 1227 *| 0 | 3 | Left PCM Playback 1228 *| 1 | 4 | Right PCM Playback 1229 *| 2 | 5 | phone line 1 DAC 1230 *| 3 | 6 | Center PCM Playback 1231 *| 4 | 7 | Left Surround PCM Playback 1232 *| 5 | 8 | Right Surround PCM Playback 1233 *...... 1234 * 1235 *| CLSS[4:0]/ 1236 *| CRSS[4:0] | AC97 | Codec |Slot Function 1237 *|-----------+------+-------+----------------- 1238 *| 10 | 3 |Primary| Left PCM Record 1239 *| 11 | 4 |Primary| Right PCM Record 1240 *| 12 | 5 |Primary| Phone Line 1 ADC 1241 *| 13 | 6 |Primary| Mic ADC 1242 *|..... 1243 *| 20 | 3 | Sec. | Left PCM Record 1244 *| 21 | 4 | Sec. | Right PCM Record 1245 *| 22 | 5 | Sec. | Phone Line 1 ADC 1246 *| 23 | 6 | Sec. | Mic ADC 1247 */ 1248 dat32 = 0x0b << 24 | /* CRSS[4:0] Right PCM Record(primary) */ 1249 0x0a << 16 | /* CLSS[4:0] Left PCM Record(primary) */ 1250 0x01 << 8 | /* PRSS[4:0] Right PCM Playback */ 1251 0x00 << 0; /* PLSS[4:0] Left PCM Playback */ 1252 BA0WRITE4(sc, CS4281_SRCSA, dat32); 1253 1254 /* Set interrupt to occurred at Half and Full terminal 1255 * count interrupt enable for DMA channel 0 and 1. 1256 * To keep DMA stop, set MSK. 1257 */ 1258 dat32 = DCRn_HTCIE | DCRn_TCIE | DCRn_MSK; 1259 BA0WRITE4(sc, CS4281_DCR0, dat32); 1260 BA0WRITE4(sc, CS4281_DCR1, dat32); 1261 1262 /* Set Auto-Initialize Contorl enable */ 1263 BA0WRITE4(sc, CS4281_DMR0, 1264 DMRn_DMA | DMRn_AUTO | DMRn_TR_READ); 1265 BA0WRITE4(sc, CS4281_DMR1, 1266 DMRn_DMA | DMRn_AUTO | DMRn_TR_WRITE); 1267 1268 /* Clear DMA Mask in HIMR */ 1269 dat32 = ~HIMR_DMAIM & ~HIMR_D1IM & ~HIMR_D0IM; 1270 BA0WRITE4(sc, CS4281_HIMR, 1271 BA0READ4(sc, CS4281_HIMR) & dat32); 1272 1273 /* set current status */ 1274 if (init != 0) { 1275 sc->sc_prun = 0; 1276 sc->sc_rrun = 0; 1277 } 1278 1279 /* setup playback volume */ 1280 BA0WRITE4(sc, CS4281_PPRVC, 7); 1281 BA0WRITE4(sc, CS4281_PPLVC, 7); 1282 1283 return 0; 1284} 1285